Physical Properties of Sandstone & Quartzite
| PHYSICAL PROPERTIES OF SANDSTONE & QUARTZITE | |
| Color | Minor color tonal variations exist but within the tolerance limit. |
| Hardness | 6 to 7 on Moh's Scale Density 2.32 to 2.42 Kg/m3 |
| Compressive Strength | 365 to 460 Kg/m2 |
| Water Absorption | Not more BORDERthan 1.0 % |
| Modulus of Rupture | 197-200 Kg/cm2 |
| Porosity | Low to very low. |
| Weather Impact | Resistant |
| CHEMICAL PROPERTIES OF SANDSTONE & QUARTZITE | |
| Chemically they are very resistant Mono-Mineralic rocks, principally of silica. | |
| SiO2 | 93-94% |
| Iron (Fe2O3) | 1.5%-1.6% |
| Alumina (Al2O3) | 1.4 to 1.5% |
| Soda (Na2O) & Potash (Kro) | 1.0% to 1.2% |
| Lime (CaO) | 0.8% to 0.9% |
| Magnesia (MgO) | 0.2 to 0.25% |
| Loss On Ignition (LOI) | 1.0% to 1.2%. |
| They are highly resistant to avoids, alkalis and thermal impact. Insolubility in acids and alkalis is about 97%. | |
IMPERIAL GREEN
Imperial Green is premium dark green marble of serpentine nature. It is one of the largest exported marble from Rajasthan in forms of blocks, slabs and tiles in various dimensions. Because of it's ability to take high polish it is mainly used on interior floors and decorative purposes.
Limestone Cobbles
A cobble stone is smaller than a boulder and larger than a pebble. Cobbles are fireproof, need little maintenance and no paint.